#include <fmt/core.h>

int main () {
    fmt::print("{}, {}, {}\n", 'a', 'b', 'c');
    fmt::print("{0}, {1}, {2}\n", 'a', 'b', 'c');
    fmt::print("{2}, {1}, {0}\n", 'a', 'b', 'c');
    fmt::print("{0}{1}{0}\n", "XX", "abc");
    int i = 20; 
    double d = 3.4;
    fmt::print("{1} to {0}\n", i, 10);
    fmt::print("{0} / {0}\n", d);
}
